| 摘要 |
Corrosion and gas hydrate inhibitors having improved water solubility and increased biodegradability The invention provides the use of compounds of the formula (1) where R<1>, R<2 >are each independently C1- to C22-alkyl, C2- to C22-alkenyl, C6- to C30-aryl or C7- to C30-alkylaryl, R<3 >is C1- to C22-alkyl, C2- to C22-alkenyl, C6- to C30-aryl or C7- to C30-alkylaryl, -CHR<5>-COO<-> or -O<->, R<4 >is M, hydrogen or an organic radical which optionally contains heteroatoms and has from 1 to 100 carbon atoms, A is a C2- to C4-alkylene group, B is a C1- to C10-alkylene group, D is an organic radical which optionally contains heteroatoms and has from 1 to 600 carbon atoms, X, Y are each independently O or NR<6>, R<5>, R<6 >are each independently hydrogen, C1- to C22-alkyl, C2- to C22-alkenyl, C6- to C30-aryl or C7- to C30-alkylaryl, and M is a cation n is a number from 1 to 30 as corrosion inhibitors and gas hydrate inhibitors, and also the compounds of formula 1.
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